Which of the following could qualify as a top-down control on a grassland community?

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#Question id: 3533

#8. Inheritance Biology

What would be the frequency of dominant phenotype for all character individuals from a mating of two AaBbCc individuals?

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#Question id: 2953

#2. Cellular Organization

If a cell in the G1 phase is fused with a cell in the S phase, then

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#Question id: 24184

#Aptitude

In ancient Greece, honor was not just the domain of the warrior.

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#Question id: 12203

#6. System Physiology – Plant

Which factor function as auxin co-receptors, with auxin acting as a “molecular glue”?

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#Question id: 16310

#7. System Physiology – Animal

The temperature of the body is regulated almost entirely by nervous feedback mechanisms, and almost all these mechanisms operate through temperature regulating centers located in the hypothalamus. Following statements are as follows:

A. The anterior hypothalamic-preoptic area contains large numbers of heat-sensitive neurons, as well as about one third as many cold-sensitive neurons. These neurons are believed to function as temperature sensors for controlling body temperature.

B. The heat-sensitive neurons increase their firing rate 2- to 10-fold in response to a 10°C increase in body temperature. 

C. The cold-sensitive neurons, by contrast, increase their firing rate when the body temperature increases.

D. Anterior hypothalamus integrates the central and peripheral temperature sensory signals.

Which of the following combination is correct?